Answers

2014-06-12T10:24:21+08:00
- quadratic equation comes from the latin word QUADRUS which means square.
- Example is  x^{3}  +  7x^{2} - 8 = N
 
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2014-06-12T10:24:51+08:00
Quadratic equation is an equation in the standard form a x^{2} +bx+c=0 where a,b,c are real numbers and a \neq 0.

Examples:
 x^{2} +2x+1
 x^{2} -4
2 x^{2} -4x
 x^{2}
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